# Stronger by the Day vs align instruments

The clearest difference is update cadence: align instruments at fortnightly against Stronger by the Day's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stronger by the Day sells 3 in-app purchases, starting at $16.99 per month and align instruments sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Stronger by the Day ships an update monthly, align instruments fortnightly. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Stronger by the Day | align instruments |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.6K ratings)](https://appshunter.io/ios/app/stronger-by-the-day/id1591765440/reviews)** | — |
| Number of ratings | **3.6K** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 79 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Strong Strong Friends LLC](https://appshunter.io/developer/1591765442) | [Lars Minnes](https://appshunter.io/developer/1886439187) |

## What reviewers say

### Stronger by the Day

[App page](https://appshunter.io/ios/app/stronger-by-the-day/id1591765440)

This fitness app offers expert coaching and personalized progress tracking for women serious about building strength and muscle. It provides a science-backed roadmap with flexible workout options designed to fit busy schedules and ensure continuous progress.

**Highlights:** Expert coaching by Meg Gallagher, Personalized progress tracking, Science-backed strength roadmap, Flexible workout scheduling, One-tap workout access, Smart progress tracking, Built-in exercise tutorials

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $16.99 | per month |
| Quarterly | $36.99 | per 3 months |
| Yearly | $99.99 | per year |

**What reviewers like**

- 👍 User-friendly app
- 🚀 Easy to use with substitutions
- 💪 Helped users get stronger
- 📊 Tracks progress well
- 💰 Great value for the price

**What reviewers complain about**

- 🐛 Buggy app with crashes and data loss
- 🔍 Difficult to access previous workouts
- ⏱️ Clunky workout logging process
- 🔌 Requires internet connection
- 🤷‍♀️ Limited customization options

**Reported bugs**

- Frequent app crashes
- Workout data not saving properly
- Login issues and getting logged out
- Slow loading of videos and information

**Requested features**

- Offline mode
- Ability to view full week's workouts
- Automatic rest timer
- More customization for substitutions
- Export workout data


### align instruments

[App page](https://appshunter.io/ios/app/align-instruments/id6760935894)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential monthly | $9.99 | per month |
| Pro monthly | $29.99 | per month |
| Essential yearly | $79.99 | per year |
| Pro yearly | $399.99 | per year |


## Frequently asked questions

### Is Stronger by the Day free?

Stronger by the Day is free to download, with in-app purchases available.

### Is align instruments free?

align instruments is free to download, with in-app purchases available.

### Do Stronger by the Day or align instruments have ads?

Neither Stronger by the Day nor align instruments shows ads.

### Which is updated more often, Stronger by the Day or align instruments?

Stronger by the Day ships an update monthly, and align instruments fortnightly. Most recently, Stronger by the Day was updated on October 17, 2026 and align instruments on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*